Method isMqttValid

src/frontend/datasources/ImportFileWidget.cpp:2647–2658

! * returns \c true if there is a valid connection to an MQTT broker and the user has subscribed to at least 1 topic, * returns \c false otherwise. */

 * returns \c false otherwise.
 */
bool ImportFileWidget::isMqttValid() {
	if (!m_client)
		return false;
	if (m_client->state() != QMqttClient::ClientState::Connected)
		return false;
	if (!m_subscriptionWidget->subscriptionCount())
		return false;
	if (this->currentFileType() != AbstractFileFilter::FileType::Ascii)
		return false;

	return true;
}

/*!
 *\brief called when the client connects to the broker successfully.